Liquid-dispensing machine



C. O. NICCASLAND'. LIQUID DISPENSING MACHINE.

c. @.MCCASLAND.

'LIQUID DISPENSING MACHINE.

APPLICATION FILED M1625; |920.

PatentedJune 20, 1922.

2 SHEETSSHEET 2,

, I M III I I M .Y V/A w Fmi ` set forth.

CHARLES 0. MCCASLAND, 0F ST. LOUIS, MISSOURI.

LIQUID-DISPENSING MACHINE.

Specification of Letters Patent.

Patented June 20, 1922.

Application filed August 5, 1920. l Serial No. 401,466.

To all lwhom. t may concern:

Beit known that I, CHARLES (l. MoCAs- LAND, a citizen of the United States, resid ing at St. Louis, in the county of St. Louis and State of Missouri, have invented certain new and useful Improvements in Liquid- Dispensing Machines, of which theL follovw ing is a specification.

The object of my invention is to provide a liquid dispensingl device, such for instance as a gasoline selling station, which may be lo-v cated at predetermined points along a highway and which may be operated by the purchaser of the gasoline whereby a motorist may obtain gasoline at any hour of the day or night. v

A further'object of my invention is to provide means whereby the purchaser may operate the dispensing device only after he has inserted therein a prescribed coin or token.

A further object of my invention is to provide means whereby the machine may be set todeliver a predetermined amount of gasoline for each coin or token introduced into the machine so that the iuctuation in price will not work against the owner of the machine; and with these and other objects in.

view my invention consists of the parts and combination of parts as will be hereinafter In the drawing:

gasoline dispensing machine embodying my invention, portions being in section and other portions broken away. i

F-'gures 2 and 3 are enlarged detail views. Figurfe 4 is an enlarged detail view of a slight modification. l

Figure 5 is a verticall sectional view of a dispensing. machine illustrating `another eml through the casing.

bodiment of my invention.

The construction shown in this case is primarily designed to be connected with a supply of gasoline in an elevated tank or an underground tank in which the gasoline is under pressure, but it may, as will be shown, be used with equal effectiveness in connection with the standard pump.

The reference numeral 1 designates a supvply pipe which may be connected` with an elevated tank ora tank in which the gasoline is under pressure. This supply pipe 1 is coupled to the discharge pipe 2 and is coupled to the measuring tank 3 by means of a shortl 'pipe4. The supply pipe 1 is like fit in the tank sovthat the pressurev as well as the weight of the gasoline will move it so that when gasoline is/admitted through the port 11 at the bottom of the tank the float 10 will be forced upward and carry with it a rack bar 12 which meshes with a gear wheel 13 of a suitable meter, said gear wheel having mounted on its shaft an indicator which is visible tov the purchaser, so that he may see that he is gasoline he pays for.

A stopper 15 suspended on a rod 16 is adapted to close the port 11 when the float 10 has reached its'nppermost limit and said rod 16 is connected adjustably to the float by gettingV the amount of means of a nut 17 screw threaded on the rod whereby the length of the rod below the float may beregulated by threading through the nut 17 yso that the length of movement of the stopper 15 in closing the inlet portll may be adjusted according to the `fluctuations of gasoline prices. For instance when the rod 16 is screwed downward in the nut 17 as far as it will go the full capacity of the tank 3 will be delivered. The `meter to which the Vgear wheel 13 is connected shows the total y amount of gasoline sold.

In order to lock the machine against un-'i authorized operation I provide a coin lock 18 of any suitable construction and provlded with a coin chute 19 which chute extends A push bar 20, provided with a suitable handle 21 is slidable through a slot in the wall of the casing 22, the handle 2.1 and adjacent portion of the bar being outslde of the casing, and is locked. against movement by means ofthe lock 18 and can only be moved after a rescribed coin or token has been introduce into the lock. The inner 'end of the bar 20 .is pivotally connected to one end of a link 22a, thepther end of the link being pivotally connected to the arm 9 of the cock 8 in the delivery pipe'whereby the cock may be operated.

A lever 23 is suitably pvoted in the caslnfg los 22 one end projecting outside of the casing througha suitable vslot in the casing. One end of a link 24 is pivotally connected to the inner end of the lever 23 while its other end is suitably pivoted to the arm 6 ot' the `cock 5 in the supply pipe 1; A bar 25ispvotally suspended from the lever 23 and normally rests upon the sliding push bar 20 thereby preventing a movement of the lever 23 to operate the device, but the bar 2() is provided with an interruption which, may be the shoulder 26 or the slot 27, which, when .the bar 20 has been moved inwardly to the limit of its movement, permits the bar 25 toidescend as shown in Figure.

Upon the insertion of acoin or token in the lock 18 the bar 2() is free to be moved, whereupon it is'pushed inward to the limit of its stroke, which movement operates the link 22aL and arm 9 whereby the cock in the discharge pipe 2 is closed. 'lhe lever 23 is now free to be moved upward thereby pushing the bar 25 downward back of the shoulder 26 or through the slot 27 thereby locking the bar 20 against outward movement. As the lever 23 is moved upward at its outer end it pulls the link 24 downward thereby-pulling the arm 6 and opening the cock 5 in the supply tank, whereupon the gasoline is free to flow through the supply pipe into the measuring tank 3 forcing the float 10 upward until the stopper 15 closes the inlet 1 1 thereby shutting oli" the supply of gasoline to the measuring tank 3. Then the purchaser sees thatthe amountl of gasoline purchased is in the measuring tank he then pushes the lever 23 downwardly thereby through the link 24 and l`arm 6 completely closing the cock' in the supply tank.` The bar 20 is now released and may be pulled outwardly, which movement,'through the link 22' and arm 9 opens the valve 8 in .the discharge pipe, whereupon the gasoline in the measuring tank 3 is free to How therefrom into the tank on an automobile or in any other receptacle, but the bar 20, after 'it has vbeen moved sufliciently to open the valve `8 is immediately locked against inward movement until another coin has been .inserted and the lever 4 23 is also locked against movement by reason of the bar 25 again resting upon the upper face of the bar 20.

In Figure 5 I have shown the above described mechanism adapted to a pump dispensing machine `and as it is unnecessary to again minu'tely describe these parts I have used the same reference numerals in this figure as are used to designate like parts in the other figures. A

In Figure 5 the gasoline supply pipe l leads into the measuring` tank 3. The rack bar 27 is connected to a suitable pump adapted to be engaged by a pawl 28 said pawl being held normally in engagement with the rack bar 27 by means of a coiled spring 29, said pawl being connected by4 means of a rod, wire, or the like 30 to the arm 7 of the valve 5 in the supply pipe whereby the pump is locked by said pawl against unauthorized manipulation.

A second dog 3l is suitably pivoted in thel nut 36 on the rack bar 12 of the float, and

has its upper end projecting above the end of the float rack bar for engagement-with the knob 34 of the rocking beam 33,. said4 rod v35' being adjustable to determine the amount of gasoline to be delivered for a prescribed co'in.

Referring to Figure 5, after the bar 20 cock 8, lever 23 and valve 5 have been given their initial movements, opening of the valve 5 through the varm 7 pulls on the rod 30 whereby the pawl 28 is disengaged from the pump rack bar 27 whereupon the pump is now free to be operated. 'When the pre-V scribed quantity of gasoline has been deliveredto the measuring tank the float has reached its uppermost portion andprojected its rack bar 12 and rod 10 upward and the rod 10 coming into engagement with the beam 33 rocks the beam on its pivot thereby lowering the rod 32 and permitting the pawl 31 to move into engagement with the pump rack 27 thereby locking the pump against further action. The push bar 20 and lever 23 are again operated as above ldescribed to open the discharge valve 8 and close the supply valve 5 whereby the pawl 28 is again permitted to move into engagement with the pump rackv and the gasolinedischarged, the downward movement of the float as the liquid is discharged permitting the pawl 31 to disengage from the pump rack. The stopper 15 and the rod 16 would, of course, be detached when a pump was used.

What l claim is: f'

1. The combination with a commercial gasoline dispensing pump having the usual rack bar, a preliminary lock adapted to engage: land lock the said bar against movement, means to release said lock, a measuring tank, means operated by a predetermined quantity of liquid in said tank to look said bar a ainst movement, a supply pipe and a disc control for said pipes.

2. In a gasoline dispensing machine, the combination with a measuring tank, and a valved supply and a valved discharge pipe, a lock controlled bar for the valve in the discharge pilar-.means for operating the valve in the supply pipe and detac'hably engagarge pipe for said tank, and a valved A Ving the said bar and inoperative while in `enga ement with said bar. n a gasoline dispensing machine, the comblnation with a measuring tank, and a valved supply and a valved discharge pi-pe the said bar has been moved to close thel discharge valve.

4. In a gasoline dispensing machine, the combination with a measuring tank, and a valved supply and a valved discharge pipe therefor, of a. lock4 controlled bar for operating the valve in the discharge pipe, a lever for operating the valve of thesupply pipe, means carried by said lever and sup-,

ported by said bar against downward movement until the bar has been moved to close the discharge valve, whereby the supply,

valved .discharge pipe and a valved ysupply pipe therefor, of a lock controlled bar for operating the discharge valve, a lever for operating the supply valve, a link depending from said lever and supported on said bar when the discharge valve is open and the supply valve is closedmea,ns on said bar to permit the link to descend when the bar has been moved to close the discharge valve whereupon the lever may be operated to open the supply valve.

6. In a liquid vending machine, the combination of a measuring tank, a supply valve to and a discharge Valve from said tank,

a lock-controlled means for *operating said discharge valve, a means by which the operatormay open -or closesaid supply valve, a float, means operated by said l'loat to prevent more vthan a predetermined quantity of liquid entering the measuring tank while the supply valve is open, means to prevent the supply valve being opened while the discharge valve is open.y a In testimony whereof I affix my signature.

CHARLES o. MccAsLAND. 

